TRANSMITTER ATTACHES TO THIS SURFACE

FIELD DEVICES - PRESSURE Product Specifications Logo PSS 3-5A1 B Model IFOA Integral Flow Orifice Assembly Used with I/A Series or Pneumatic d/p Cell Transmitters PNEUMATIC TRANSMITTER TRANSMITTER ATTACHES TO THIS SURFACE MODEL IFOA SHOWN WITH 3-VALVE MANIFOLD ORIFICE PLATE (PART OF MODEL IFOA) The Foxboro brand Model IFOA Integral Flow Orifice Assembly is available from Invensys Process Systems (IPS). It is used in combination with a Foxboro I/A Series or Pneumatic d/p Cell Transmitter to accurately measure liquid, gas, or steam flow in 1/2 in, 1 in, and 1 1/2 in (approximately DN 15, DN 25, and DN 40) size pipes. The Model IFOA Integral Orifice Assembly in combination with Foxboro d/p Cell Transmitters uses the differential pressure created by the orifice to measure, with high accuracy, process flows in 1/2 in, 1 in, and 1 1/2 in size pipes. This integral flow orifice assembly features: Very high accuracy when equipped with associated piping. Process-wetted materials available for use with both corrosive and noncorrosive fluids. Various process pipe end connections available. Can be used with any differential pressure transmitter having standard process connections. The transmitter can be either integrally coupled or remotely connected. A 3-Valve Manifold is recommended for mounting between the Model IFOA and transmitter. Process-wetted material meets NACE Standard MR-01-75. Self-centering orifice plate design. No-flow-through transmitter body. Orifice plate manufacture consistent with ASME, ISO, and AGA-3 standards. Foxboro

Page 2 CONVENIENT SIZING The Model IFOA is suitable for liquid, gas, and steam applications. By choosing the correct combination of assembly size and orifice bore, almost any desired flow rate, with either turbulent or laminar flow conditions, can be measured. Using flow data supplied by the user at the time the order is placed for the Model IFOA and the transmitter, IPS supplies a flow calculation and specification sheet with the orifice assembly. This sheet lists complete transmitter-orifice assembly flow data for the user s process. If the user wishes, he can obtain the required differential pressure range or orifice bore himself by using the FlowExpertPro sizing program. See paragraph that follows. FlowExpertPro FlowExpertPro is a program primarily used to size Foxboro flowmeters. It also ensures that the user has selected the proper flowmeter for his application. IPS provides this meter selection tool as a free web site to all users, without the need for registration. In addition to flowmeter selection and sizing, FlowExpertPro includes the following features: Incorporates a large library of the physical properties of typical process fluids. Displays results in tabular or graphic format. Allows user to save, print, or E-mail results. Provides reference to applicable flowmeter PSSs and other related flowmeter documentation. The program calculates minimum and maximum flow rates, rangeability, pressure loss, and Reynolds Number, using established flow equations. It also allows for material and flange selection, and provides ANSI or metric flange recommendations for predicted flow pressure and temperature. You are invited to visit www.flowexpertpro.com to access this program, or contact IPS for further information and technical support. HANDLES WIDE RANGES OF FLOW RATES The flow rate ranges handled by these integral orifice flow assemblies (each range depends on the specific combination of assembly size and orifice bore) are those frequently found in chemical and petrochemical plants, research projects, and high-accuracy metering applications. In addition, the very low flow rates that the 1/2 in size can measure can be further extended by using an orifice plate with a jewel insert. This insert can have an orifice diameter as small as 0.0508 mm (0.0020 in) and permits measurement of extremely low flow rates. The approximate measurement range of each orifice assembly size is listed in Table 4. HIGHLY ACCURATE MEASUREMENTS The orifice assembly can be supplied with associated piping welded to it. This piping can have a variety of end connections (for installation into the user s process piping). All essential parts are bored to assure a precise inside diameter which is highly concentric with the orifice bore. This permits a Beta ratio (ratio of orifice bore to pipe ID) that is tightly controlled. The results are measurements that are far more accurate than could otherwise be obtained. AVAILABLE IN A VARIETY OF MATERIALS, SIZES, AND CONFIGURATIONS The orifice plate and body assembly are available in several metals to meet the requirements of almost any process, including NACE material standards. (Only AISI Type 316 stainless steel [316 ss] construction is available when the orifice assembly is supplied with associated piping.) The assembly is available in 1/2 in, 1 in, or 1 1/2 in pipe sizes. The process piping can be either screwed or welded to the body. Several standard orifice bore diameters are available for each assembly size. In addition, non-standard bore sizes, between Beta ratio limits of 0.1 and 0.8, can be supplied. See Table 2.

Page 3 REMOTE CONNECTORS If the temperature of the process fluid exceeds the temperature limit of the transmitter (so that the transmitter must be mounted away from the orifice assembly), or, if for other reasons, it is desirable to locate the transmitter elsewhere, optional connectors are available for remote-mounting the transmitter. SIMPLIFIED INSTALLATION The orifice assembly becomes part of the process piping. The transmitter is bolted directly onto the orifice assembly; thus, no transmitter piping is required. The transmitter can be isolated or bypassed by the addition of a three-valve bypass manifold. This permits the zeroing, calibration check, and maintenance of the transmitter without either interrupting the flow or removing the integral orifice assembly from the process line. Both the bypass manifold and the transmitter are bolted together as a unit, and the pair is mounted directly onto the orifice assembly. Refer to PSS 2B-1Z2 A for a listing of manifolds offered. FUNCTIONAL SPECIFICATIONS Pressure-Temperature Ratings Refer to Table 1. Assembly Line Size End Connection Table 1. Pressure-Temperature Ratings (a)(b) 1/2 in Welded 20.7 MPa from -40 to +40 C 15.9 MPa at 150 C Threaded 10.0 MPa from -40 to +40 C 8.1 MPa at 150 C Pressure-Temperature Rating MPa and C psi and F 3000 psi from -40 to +100 F 2300 psi at 300 F 1500 psi from -40 to +100 F 1180 psi at 300 F Flanged (b) Flange Rating up to 150 C Flange Rating up to 300 F max. 1 in Welded 13.8 MPa from -40 to +40 C 10.7 MPa at 150 C Threaded 10.3 MPa from -40 to +40 C 8.1 MPa at 150 C 2000 psi from -40 to +100 F 1550 psi at 300 F 1500 psi from -40 to +100 F 1180 psi at 300 F Flanged (b) Flange Rating up to 150 C max. Flange Rating up to 300 F max. 1 1/2 in Welded 9.9 MPa from -40 to +40 C 7.7 MPa at 150 C Threaded 9.9 MPa from -40 to +40 C 7.7 MPa at 150 C 1440 psi from -40 to +100 F 1120 psi at 300 F 1440 psi from -40 to +100 F 1120 psi at 300 F Flanged (b) Flange Rating up to 150 C max. Flange Rating up to 300 F max. (a) Low temperature limit it -40 C (-40 F). The lowest rating of any component of the system (IFOA, piping, or transmitter) is the maximum allowable rating of the system. (b) Pressures correspond to ANSI Class 600 flange ratings unless otherwise noted.

Page 4 FUNCTIONAL SPECIFICATIONS (CONT.) Remote Pressure Connectors If the process temperature is higher than the temperature rating of the transmitter, remote connectors (see Model Code section) are available to mount transmitter away from orifice assembly. However, the temperature of transmitter must not exceed its rating. The remote connectors are provided with the necessary bolts and gaskets. Two sets are required: one set is provided with the orifice assembly and one set with the transmitter. Connecting piping is supplied by the user. Mounting The orifice assembly is inserted into the user s process line and becomes a permanent part of the piping. The transmitter bolts onto the orifice assembly body. If optional remote connectors are used, the transmitter can be located away from the orifice assembly. Pressure Taps Corner Orifice Inlet Edge BORE DIAMETER UP TO 1.5 mm (0.06 in) Quadrant edge BORE DIAMETER ABOVE 1.5 mm (0.06 in) Square edge Pipe Bores Ass y Line Size in 1/2 1 1 1/2 Pipe Sched. 40 40 80 (a) When piping is supplied by Invensys Process Systems, ID of both ends of pipe at orifice assembly is precision bored to indicated diameters. (b) When pipe is supplied by user, nominal ID of commercial size is indicated. Orifice Bores Refer to Table 2. With Assoc. Piping (a) Without Assoc. Piping (b) mm in mm in 16.76 27.76 39.65 0.660 1.093 1.561 15.80 26.64 38.10 0.622 1.049 1.500 Table 2. Standard and Nonstandard IFOA Orifice Bore Beta Ratios (ß); Based on Pipe Supplied by IPS Beta Ratios for the Following Orifice Assembly Size 1/2 in 1 in 1 1/2 in Type Orifice Plate With Standard Bore Diameters With Nonstandard Bore Diameters All Metal Jewel Insert (a) Orifice Bore Orifice Bore Orifice Bore Beta Beta mm in Ratio mm in Ratio mm in 0.508 0.889 1.524 2.54 4.06 6.35 8.89 0.0200 0.0350 0.0600 0.100 0.160 0.250 0.350 0.03030 0.05303 0.09091 0.1515 0.2424 0.3788 0.5303 6.15 8.66 12.14 16.64 21.13 0.242 0.341 0.478 0.655 0.832 0.2214 0.3120 0.4373 0.5993 0.7612 9.70 13.67 19.08 25.86 29.97 0.382 0.538 0.751 1.018 1.180 Sizes between Beta ratio limits of 0.1 and 0.8 can be supplied. Beta ratios between 0.00303 and 0.0227 Beta Ratio 0.2447 0.3447 0.4811 0.6521 0.7559 (a) Available in bore diameters from 0.0508 to 0.318 mm (0.0020 to 0.0150 in) in increments of 0.0254 mm (0.0010 in).

Page 5 FUNCTIONAL SPECIFICATIONS (CONT.) Process End Connections ASSEMBLY WITHOUT ASSOCIATED PIPING Body connections for 1/2 in, 1 in, or 1 1/2 in pipe; NPT or R c pipe tap, or prepared for socket welding, as specified. ASSEMBLY WITH ASSOCIATED PIPING 1/2 in, 1 in, or 1 1/2 in pipe is welded to body; outer ends are either threaded (NPT or R), prepared for welding, or flanged (ANSI; Class 150, 300, or 600), as specified. Pipe lengths are approximately 18 pipe diameters upstream and 7 pipe diameters downstream. PERFORMANCE SPECIFICATIONS (Refer to associated transmitter specifications for transmitter accuracy) Flow Coefficient Uncertainty Table 3 lists flow coefficient uncertainties at various orifice bore Reynolds Numbers when using standard bore orifice plates. The flow coefficient uncertainty can be reduced by a laboratory flow calibration of the orifice assembly. Refer to IPS for details. Table 3. Flow Coefficient Uncertainty for Standard Bore Orifice Plates Assembly Line Size Beta Ratio Orifice Bore Reynolds Number (R D ) Uncertainty with Associated Piping Uncertainty without Associated Piping (a) 1/2 in (Quadrant Edge) 1/2 in (Square Edge) 1 in (Square Edge) 1 1/2 in (Square Edge) 0.03030 to 0.09091 <1500 1500 0.1515 < 500 1500 0.2424 to 0.5303 <1500 1500 0.2214 to 0.5993 <1500 1500 0.7612 <1500 1500 R D <10 000 10 000 0.2447 to 0.4811 <1500 1500 0.6521 to 0.7559 < 1500 1500 R D <10 000 10 000 ±3% ±1.25% ±0.75% ±0.75% > ±1.5% ±0.75% > ±1.5% ±2.5% ±1.5% ±1.5% > ±3% ±1.5% > ±3% (a) Using Schedule 40 pipe for 1/2 and 1 in sizes, and Schedule 80 pipe for 1 1/2 in size.

Page 6 PERFORMANCE SPECIFICATIONS (CONT.) Measurement Range See Table 4 and also refer to FlowExpertPro. Table 4. Approximate Measurement Range Orifice Assembly Size Flow Limit 1/2 in Minimum Maximum 1 in Minimum Maximum 1 1/2 in Minimum Maximum Water Flow Rate Limits at 5.6 C (60 F) Air Flow Rate Limits at 15 C and 101.3 kpa (59 F and 14.7 psia) U.S. gpm L/s L/min ft 3 /min ft 3 /hr m 3 /hr 0.000045 30 0.1 100 0.2 200 0.0000028 1.92 0.00667 6.67 0.0133 13.3 0.00017 115 0.4 400 0.8 800 0.00018 83.3 0.367 367 0.75 750 0.011 5000 22 22 000 45 45 000 0.00031 140 0.6 600 1.3 1300 PHYSICAL SPECIFICATIONS Material of Construction See Table 5. Table 5. Materials of Construction Part Material ASTM Designation Orifice Plate 4.2 mm (0.167 in) thick Body (a) Bolts Nuts 316 ss Hastelloy C Monel 316 ss Hastelloy C (Grade CW-2M) Gr. B7 (standard) (b) Gr. B7M (NACE) (b) 17-4 PH Gr. 2H (with B7 bolts) (b) Gr. 2HM (with B7M bolts) (b) 17-4 PH A-240 B-626 B-127 A-351-CF8M A-494 A-193 A-193 A-564 A-194-2H A-194-2HM A-564 Gasket Glass reinforced ptfe (Chemloy ) With Associated Piping or Optional Remote Connectors Pipe (c) 316 ss A-312 Pipe Flanges 316 ss A-182-F316 Remote Connectors 316 ss Hastelloy C-276 A-182-F316 B-564 (a) 316 ss only with associated piping. (b) Alloy steel. (c) 1/2 and 1 inch pipes are Schedule 40; 1 1/2 inch pipe is Schedule 80.

Page 7 PHYSICAL SPECIFICATIONS (CONT.) Orifice Plate Identification One side of the handle has INLET and the plate material stamped on it; the other side has the part number and bore diameter. Approximate Mass Assembly Line Size 1/2 in 1 in 1 1/2 in Without Piping With Piping and Flanges kg lb kg lb 2 2.5 3.5 4 5 8 3 5.5 12 7 12 26 OPTIONAL SELECTIONS Description Kit of standard-bore orifice plates 7 plates, 1/2 inch size assembly, in Monel 7 plates, 1/2 inch size assembly, in 316 ss 5 plates, 1 inch size assembly, in 316 ss 5 plates, 1 1/2 inch size assembly, in 316 ss Oxygen service cleaning NACE Standard MR-01-75 compliance for process-wetted parts only NACE Standard MR-01-75 compliance for Class II body bolting AS Reference IFOA-KIT-A IFOA-KIT-B IFOA-KIT-C IFOA-KIT-D OS-W MR-01 B7M 17-4 PH body bolting SSB

Page 8 MODEL CODE Description Model Integral Flow Orifice Assembly IFOA Assembly Line Size 1/2 in (15 mm) 0H 1 in (25 mm) 01 1 1/2 in (40 mm) 1H Body Material 316 ss S Hastelloy C (Grade CW-2M) H End Connections Without Associated Piping Socket Weld 1 Threaded (NPT) 2 R c threaded (internal) 8 With Associated Piping; 316 ss parts only Prepared for Welding 3 Threaded (NPT) 4 Class 150 Flanges 5 Class 300 Flanges 6 Class 600 Flanges 7 R threaded (external) 9 Orifice Plate Material Hastelloy C H Monel M 316 ss S Orifice Plate Bore - 1/2 inch Line Size (a) 0.508 mm (0.0200 in) A 0.889 mm (0.0350 in) B 1.524 mm (0.0600 in) C 2.54 mm (0.100 in) D 4.06 mm (0.160 in) E 6.35 mm (0.250 in) F 8.89 mm (0.350 in) G Jewel insert, bored as specified between 0.0508 and 0.381 mm (0.0020 and 0.0150 in) U Bored as specified between Beta ratios of 0.1 and 0.8 V Orifice Plate Bore - 1 inch Line Size (a) 6.15 mm (0.242 in) H 8.66 mm (0.341 in) J 12.14 mm (0.478 in) K 16.64 mm (0.655 in) L 21.13 mm (0.832 in) M Bored as specified between Beta ratios of 0.1 and 0.8 V Orifice Plate Bore - 1 1/2 inch Line Size (a) 9.70 mm (0.382 in) N 13.67 mm (0.538 in) P 19.08 mm (0.751 in) R 25.86 mm (1.018 in) S 29.97 mm (1.180 in) T Bored as specified between Beta ratios of 0.1 and 0.8 V Model Code continued on next page.

Page 9 Description (Cont.) MODEL CODE (CONT.) Optional Selections See Descriptions below. Remote Connectors Tapped for 1/2 NPT 1 Tapped for R 1/2 2 Remote Connector Material (Select only with -1 or -2 Connector) 316 ss S Hastelloy C H Example: IFOA01S13SJ1S (a) Select orifice plate bore for either 1/2 in, 1 in, or 1 1/2 in line size only. Model

Page 10 DIMENSIONS - NOMINAL mm in ASSEMBLY WITHOUT ASSOCIATED PIPING ALLOW 60 mm (2.5 in) TO REMOVE ORIFICE PLATE A B 86 3.4 54 2.1 41 1.6 C END CONNECTIONS: _ NPT OR R c THREAD C L _ SOCKET WELD PIPE _ 1/2 PIPE SIZE (SEE TABLE A) _ 1 PIPE SIZE SEE (SEE TABLE A) _ 1-1/2 PIPE SIZE (SEE TABLE A) THIS SURFACE IS BOLTED TO TRANSMITTER, TO OPTIONAL REMOTE CONNECTORS, OR TO OPTIONAL 3-VALVE BYPASS MANIFOLD. ASSEMBLY LINE SIZE Table A. Socket Weld End of Pipe PIPE MACHINE O.D. TO (a) Tolerance is +0, -0.13 mm. (b) Tolerance is +0, -0.005 in. SOCKET DEPTH mm (a) in (b) SCHD mm in 1/2 20.32 0.800 40 12.70 0.500 1 32.39 1.275 40 1 1/2 47.24 1.860 80 Table B. Assembly Dimensions DIMENSION ASSEMBLY A B C LINE SIZE mm in mm in mm in 1/2 124 4.9 70 2.8 86 3.4 1 135 6.3 76 3.0 97 3.8 1 1/2 150 5.9 81 3.2 117 4.6

Page 11 DIMENSIONS - NOMINAL (CONT.) mm in ASSEMBLY WITH ASSOCIATED PIPING C L TRANSMITTER D FOR ORIFICE ASSEMB\ LY DIMENSIONS, SEE PREVIOUS PAGE. PRESSURE TAP HOLE DIAMETER 3.2 AND 6.4 mm DIA. (0.13 AND 0.25 in). 4.2 0.17 E ID OF PIPE PRECISION BORED ON BOTH SIDES OF ORIFICE FOR APPROXIMATELY 125 mm (5 in). FLOW NOTES: ASSEMBLY SIZE AND PIPE SCHEDULE, SEE NOTE 1. 1. ASSEMBLY SIZE AND PIPE SCHEDULE: _1/2 SCHEDULE 40, _1 SCHEDULE 40, _ 1-1/2 SCHEDULE 80 2. END CONNECTION (FLANGE SHOWN) _NPT OR R THREAD _WELDING, _150 FLANGE CLASS _300 FLANGE CLASS _600 FLANGE CLASS Assembly with Associated Piping WITH FLANGE 54 2.1 WITHOUT FLANGE END CONNECTION (FLANGESHOWN), SEE NOTE 2. ASSEMBLY LINE SIZE D E D E mm in mm in mm in mm in 1/2 318 12.5 145 5.7 315 12.4 142 5.6 1 513 20.2 221 8.7 510 20.1 218 8.6 1 1/2 721 28.4 302 11.9 716 28.2 297 11.7

Page 12 DIMENSIONS - NOMINAL (CONT.) mm in ASSEMBLY WITH OPTIONAL REMOTE CONNECTORS AND A 3- VALVE BYPASS MANIFOLD 25 1.0 REMOTE CONNECTORS, TAPPED FOR 1/2 NPT OR R c1/2 ORIFICE PLATE SHOWN REMOVED PIPING SUPPLIED BY USER 95 3.8 3-VALVE MANIFOLD IF REMOTE CONNECTORS ARE NOT USED, MANIFOLD BOLTS DIRECTLY ONTO ORIFICE ASSEMBLY.

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Page 16 ORDERING INSTRUCTIONS 1. Model Number 2. Complete flow data if IPS is to make calculations 3. Optional Selections (specify AS Reference Code) 4. Optional three-valve manifold (refer to PSS 2B-1Z2 A) 5. Tag (user data) OTHER M&I PRODUCTS IPS provides a broad range of measurement and instrument products, including solutions for pressure, flow, analytical, positioners, temperature, controlling and recording. For a listing of these offerings, visit the IPS web site at: www.ips.invensys.com IPS Corporate Headquarters 5601 Granite Parkway Suite 1000 Plano, TX 75024 www.ips.invensys.com Foxboro Global Client Support Inside U.S.: 1-866-746-6477 Outside U.S.: 1-508-549-2424 or contact your local Foxboro representative. Facsimile: 1-508-549-4999 Invensys, Foxboro, I/A Series, IPS Logo, d/p Cell, and FlowExpertPro are trademarks of Invensys plc, its subsidiaries, and affiliates. All other brand names may be trademarks of their respective owners. Copyright 1992-2009 Invensys Systems, Inc. All rights reserved MB 010 Printed in U.S.A. 0609